future.transaction¶

class SuggestedParams(fee, first, last, gh, gen=None, flat_fee=False, consensus_version=None, min_fee=None)¶

Bases: object

Contains various fields common to all transaction types.

Parameters:

fee (int) – transaction fee (per byte)
first (int) – first round for which the transaction is valid
last (int) – last round for which the transaction is valid
gh (str) – genesis hash
gen (str, optional) – genesis id
flat_fee (bool, optional) – whether the specified fee is a flat fee
consensus_version (str, optional) – the consensus protocol version as of ‘first’
min_fee (int, optional) – the minimum transaction fee (flat)

fee¶

Type:	int

first¶

Type:	int

last¶

Type:	int

gen¶

Type:	str

gh¶

Type:	str

flat_fee¶

Type:	bool

consensus_version¶

Type:	str

min_fee¶

Type:	int

class Transaction(sender, sp, note, lease, txn_type, rekey_to)¶

Bases: object

Superclass for various transaction types.

get_txid()¶

Get the transaction’s ID.

Returns:	transaction ID
Return type:	str

sign(private_key)¶

Sign the transaction with a private key.

Parameters:	private_key (str) – the private key of the signing account
Returns:	signed transaction with the signature
Return type:	SignedTransaction

raw_sign(private_key)¶

Sign the transaction.

Parameters:	private_key (str) – the private key of the signing account
Returns:	signature
Return type:	bytes

estimate_size()¶

dictify()¶

static undictify(d)¶

class PaymentTxn(sender, sp, receiver, amt, close_remainder_to=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a payment transaction.

Parameters:

sender (str) – address of the sender
sp (SuggestedParams) – suggested params from algod
receiver (str) – address of the receiver
amt (int) – amount in microAlgos to be sent
close_remainder_to (str, optional) – if nonempty, account will be closed and remaining algos will be sent to this address
note (bytes, optional) – arbitrary optional bytes
lease (byte[32], optional) – specifies a lease, and no other transaction with the same sender and lease can be confirmed in this transaction’s valid rounds
rekey_to (str, optional) – additionally rekey the sender to this address

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

note¶

Type:	bytes

genesis_id¶

Type:	str

genesis_hash¶

Type:	str

group¶

Type:	bytes

receiver¶

Type:	str

amt¶

Type:	int

close_remainder_to¶

Type:	str

type¶

Type:	str

lease¶

Type:	byte[32]

rekey_to¶

Type:	str

dictify()¶

class KeyregTxn(sender, sp, votekey, selkey, votefst, votelst, votekd, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a key registration transaction.

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – suggested params from algod
votekey (str) – participation public key in base64
selkey (str) – VRF public key in base64
votefst (int) – first round to vote
votelst (int) – last round to vote
votekd (int) – vote key dilution
note (bytes, optional) – arbitrary optional bytes
lease (byte[32], optional) – specifies a lease, and no other transaction with the same sender and lease can be confirmed in this transaction’s valid rounds
rekey_to (str, optional) – additionally rekey the sender to this address

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

note¶

Type:	bytes

genesis_id¶

Type:	str

genesis_hash¶

Type:	str

group¶

Type:	bytes

votepk¶

Type:	str

selkey¶

Type:	str

votefst¶

Type:	int

votelst¶

Type:	int

votekd¶

Type:	int

type¶

Type:	str

lease¶

Type:	byte[32]

rekey_to¶

Type:	str

dictify()¶

class AssetConfigTxn(sender, sp, index=None, total=None, default_frozen=None, unit_name=None, asset_name=None, manager=None, reserve=None, freeze=None, clawback=None, url=None, metadata_hash=None, note=None, lease=None, strict_empty_address_check=True, decimals=0, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a transaction for asset creation, reconfiguration, or destruction.

To create an asset, include the following:: total, default_frozen, unit_name, asset_name, manager, reserve, freeze, clawback, url, metadata, decimals
To destroy an asset, include the following:: index, strict_empty_address_check (set to False)
To update asset configuration, include the following:: index, manager, reserve, freeze, clawback, strict_empty_address_check (optional)

Parameters:

sender (str) – address of the sender
sp (SuggestedParams) – suggested params from algod
index (int, optional) – index of the asset
total (int, optional) – total number of base units of this asset created
default_frozen (bool, optional) – whether slots for this asset in user accounts are frozen by default
unit_name (str, optional) – hint for the name of a unit of this asset
asset_name (str, optional) – hint for the name of the asset
manager (str, optional) – address allowed to change nonzero addresses for this asset
reserve (str, optional) – account whose holdings of this asset should be reported as “not minted”
freeze (str, optional) – account allowed to change frozen state of holdings of this asset
clawback (str, optional) – account allowed take units of this asset from any account
url (str, optional) – a URL where more information about the asset can be retrieved
metadata_hash (byte[32], optional) – a commitment to some unspecified asset metadata (32 byte hash)
note (bytes, optional) – arbitrary optional bytes
lease (byte[32], optional) – specifies a lease, and no other transaction with the same sender and lease can be confirmed in this transaction’s valid rounds
strict_empty_address_check (bool, optional) – set this to False if you want to specify empty addresses. Otherwise, if this is left as True (the default), having empty addresses will raise an error, which will prevent accidentally removing admin access to assets or deleting the asset.
decimals (int, optional) – number of digits to use for display after decimal. If set to 0, the asset is not divisible. If set to 1, the base unit of the asset is in tenths. Must be between 0 and 19, inclusive. Defaults to 0.
rekey_to (str, optional) – additionally rekey the sender to this address

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

genesis_hash¶

Type:	str

index¶

Type:	int

total¶

Type:	int

default_frozen¶

Type:	bool

unit_name¶

Type:	str

asset_name¶

Type:	str

manager¶

Type:	str

reserve¶

Type:	str

freeze¶

Type:	str

clawback¶

Type:	str

url¶

Type:	str

metadata_hash¶

Type:	byte[32]

note¶

Type:	bytes

genesis_id¶

Type:	str

type¶

Type:	str

lease¶

Type:	byte[32]

decimals¶

Type:	int

rekey¶

Type:	str

dictify()¶

class AssetFreezeTxn(sender, sp, index, target, new_freeze_state, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a transaction for freezing or unfreezing an account’s asset holdings. Must be issued by the asset’s freeze manager.

Parameters:

sender (str) – address of the sender, who must be the asset’s freeze manager
sp (SuggestedParams) – suggested params from algod
index (int) – index of the asset
target (str) – address having its assets frozen or unfrozen
new_freeze_state (bool) – true if the assets should be frozen, false if they should be transferrable
note (bytes, optional) – arbitrary optional bytes
lease (byte[32], optional) – specifies a lease, and no other transaction with the same sender and lease can be confirmed in this transaction’s valid rounds
rekey_to (str, optional) – additionally rekey the sender to this address

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

genesis_hash¶

Type:	str

index¶

Type:	int

target¶

Type:	str

new_freeze_state¶

Type:	bool

note¶

Type:	bytes

genesis_id¶

Type:	str

type¶

Type:	str

lease¶

Type:	byte[32]

rekey_to¶

Type:	str

dictify()¶

class AssetTransferTxn(sender, sp, receiver, amt, index, close_assets_to=None, revocation_target=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a transaction for asset transfer.

To begin accepting an asset, supply the same address as both sender and receiver, and set amount to 0.

To revoke an asset, set revocation_target, and issue the transaction from the asset’s revocation manager account.

Parameters:

sender (str) – address of the sender
sp (SuggestedParams) – suggested params from algod
receiver (str) – address of the receiver
amt (int) – amount of asset base units to send
index (int) – index of the asset
close_assets_to (string, optional) – send all of sender’s remaining assets, after paying amt to receiver, to this address
revocation_target (string, optional) – send assets from this address, rather than the sender’s address (can only be used by an asset’s revocation manager, also known as clawback)
note (bytes, optional) – arbitrary optional bytes
lease (byte[32], optional) – specifies a lease, and no other transaction with the same sender and lease can be confirmed in this transaction’s valid rounds
rekey_to (str, optional) – additionally rekey the sender to this address

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

genesis_hash¶

Type:	str

index¶

Type:	int

amount¶

Type:	int

receiver¶

Type:	string

close_assets_to¶

Type:	string

revocation_target¶

Type:	string

note¶

Type:	bytes

genesis_id¶

Type:	str

type¶

Type:	str

lease¶

Type:	byte[32]

rekey_to¶

Type:	str

dictify()¶

class StateSchema(num_uints=None, num_byte_slices=None)¶

Bases: object

Restricts state for an application call.

Parameters:	num_uints (int, optional) – number of uints to store num_byte_slices (int, optional) – number of byte slices to store

num_uints¶

Type:	int

num_byte_slices¶

Type:	int

dictify()¶

static undictify(d)¶

class OnComplete¶

Bases: enum.IntEnum

An enumeration.

NoOpOC = 0¶

OptInOC = 1¶

CloseOutOC = 2¶

ClearStateOC = 3¶

UpdateApplicationOC = 4¶

DeleteApplicationOC = 5¶

class ApplicationCallTxn(sender, sp, index, on_complete, local_schema=None, global_schema=None, approval_program=None, clear_program=None, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.Transaction

Represents a transaction that interacts with the application system.

Parameters:

sender (str) – address of the sender
sp (SuggestedParams) – suggested params from algod
index (int) – index of the application to call; 0 if creating a new application
on_complete (OnComplete) – intEnum representing what app should do on completion
local_schema (StateSchema, optional) – restricts what can be stored by created application; must be omitted if not creating an application
global_schema (StateSchema, optional) – restricts what can be stored by created application; must be omitted if not creating an application
approval_program (bytes, optional) – the program to run on transaction approval; must be omitted if not creating or updating an application
clear_program (bytes, optional) – the program to run when state is being cleared; must be omitted if not creating or updating an application
app_args (list[bytes], optional) – list of arguments to the application, each argument itself a buf
accounts (list[string], optional) – list of additional accounts involved in call
foreign_apps (list[int], optional) – list of other applications (identified by index) involved in call
foreign_assets (list[int], optional) – list of assets involved in call

sender¶

Type:	str

fee¶

Type:	int

first_valid_round¶

Type:	int

last_valid_round¶

Type:	int

genesis_hash¶

Type:	str

index¶

Type:	int

on_complete¶

Type:	int

local_schema¶

Type:	StateSchema

global_schema¶

Type:	StateSchema

approval_program¶

Type:	bytes

clear_program¶

Type:	bytes

app_args¶

Type:	list[bytes]

accounts¶

Type:	list[str]

foreign_apps¶

Type:	list[int]

foreign_assets¶

Type:	list[int]

dictify()¶

class ApplicationCreateTxn(sender, sp, on_complete, approval_program, clear_program, global_schema, local_schema, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will create an application.

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
on_complete (OnComplete) – what application should so once the program is done being run
approval_program (bytes) – the compiled TEAL that approves a transaction
clear_program (bytes) – the compiled TEAL that runs when clearing state
global_schema (StateSchema) – restricts the number of ints and byte slices in the global state
local_schema (StateSchema) – restructs the number of ints and byte slices in the per-user local state
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationUpdateTxn(sender, sp, index, approval_program, clear_program, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will change an application’s approval and clear programs.

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
approval_program (bytes) – the new compiled TEAL that approves a transaction
clear_program (bytes) – the new compiled TEAL that runs when clearing state
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationDeleteTxn(sender, sp, index, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will delete an application

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationOptInTxn(sender, sp, index, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will opt in to an application

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationCloseOutTxn(sender, sp, index, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will close out a user’s state in an application

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationClearStateTxn(sender, sp, index, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will clear a user’s state an application

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class ApplicationNoOpTxn(sender, sp, index, app_args=None, accounts=None, foreign_apps=None, foreign_assets=None, note=None, lease=None, rekey_to=None)¶

Bases: algosdk.future.transaction.ApplicationCallTxn

Make a transaction that will do nothing on application completion: In other words, just call the application

Parameters:

sender (str) – address of sender
sp (SuggestedParams) – contains information such as fee and genesis hash
index (int) – the application to update
app_args (list[bytes], optional) – any additional arguments to the application
accounts (list[str], optional) – any additional accounts to supply to the application
foreign_apps (list[int], optional) – any other apps used by the application, identified by app index
foreign_assets (list[int], optional) – list of assets involved in call
note (bytes, optional) – transaction note field
lease (bytes, optional) – transaction lease field
rekey_to (str, optional) – rekey-to field, see Transaction

See ApplicationCallTxn

dictify()¶

class SignedTransaction(transaction, signature, authorizing_address=None)¶

Bases: object

Represents a signed transaction.

Parameters:	transaction (Transaction) – transaction that was signed signature (str) – signature of a single address authorizing_address (str, optional) – the address authorizing the signed transaction, if different from sender

transaction¶

Type:	Transaction

signature¶

Type:	str

authorizing_address¶

Type:	str

get_txid()¶

Get the transaction’s ID.

Returns:	transaction ID
Return type:	str

dictify()¶

static undictify(d)¶

class MultisigTransaction(transaction, multisig)¶

Bases: object

Represents a signed transaction.

Parameters:	transaction (Transaction) – transaction that was signed multisig (Multisig) – multisig account and signatures

transaction¶

Type:	Transaction

multisig¶

Type:	Multisig

sign(private_key)¶

Sign the multisig transaction.

Parameters:	private_key (str) – private key of signing account

Note

A new signature will replace the old if there is already a signature for the address. To sign another transaction, you can either overwrite the signatures in the current Multisig, or you can use Multisig.get_multisig_account() to get a new multisig object with the same addresses.

get_txid()¶

Get the transaction’s ID.

Returns:	transaction ID
Return type:	str

dictify()¶

static undictify(d)¶

static merge(part_stxs)¶

Merge partially signed multisig transactions.

Parameters:	part_stxs (MultisigTransaction[]) – list of partially signed multisig transactions
Returns:	multisig transaction containing signatures
Return type:	MultisigTransaction

Note

Only use this if you are given two partially signed multisig transactions. To append a signature to a multisig transaction, just use MultisigTransaction.sign()

class Multisig(version, threshold, addresses)¶

Bases: object

Represents a multisig account and signatures.

Parameters:	version (int) – currently, the version is 1 threshold (int) – how many signatures are necessary addresses (str[]) – addresses in the multisig account

version¶

Type:	int

threshold¶

Type:	int

subsigs¶

Type:	MultisigSubsig[]

validate()¶: Check if the multisig account is valid.

address()¶: Return the multisig account address.

verify(message)¶: Verify that the multisig is valid for the message.

dictify()¶

json_dictify()¶

static undictify(d)¶

get_multisig_account()¶: Return a Multisig object without signatures.

get_public_keys()¶: Return the base32 encoded addresses for the multisig account.

class MultisigSubsig(public_key, signature=None)¶

Bases: object

public_key¶

Type:	bytes

signature¶

Type:	bytes

dictify()¶

json_dictify()¶

static undictify(d)¶

class LogicSig(program, args=None)¶

Bases: object

Represents a logic signature

Parameters:	logic (bytes) – compiled program args (list[bytes]) – args are not signed, but are checked by logic

logic¶

Type:	bytes

sig¶

Type:	bytes

msig¶

Type:	Multisig

args¶

Type:	list[bytes]

dictify()¶

static undictify(d)¶

verify(public_key)¶

Verifies LogicSig against the transaction’s sender address

Parameters:	public_key (bytes) – sender address
Returns:	true if the signature is valid (the sender address matches the logic hash or the signature is valid against the sender address), false otherwise
Return type:	bool

address()¶

Compute hash of the logic sig program (that is the same as escrow account address) as string address

Returns:	program address
Return type:	str

static sign_program(program, private_key)¶

static single_sig_multisig(program, private_key, multisig)¶

sign(private_key, multisig=None)¶

Creates signature (if no pk provided) or multi signature

Parameters:	private_key (str) – private key of signing account multisig (Multisig) – optional multisig account without signatures to sign with
Raises:	`InvalidSecretKeyError` – if no matching private key in multisig object

append_to_multisig(private_key)¶

Appends a signature to multi signature

Parameters:	private_key (str) – private key of signing account
Raises:	`InvalidSecretKeyError` – if no matching private key in multisig object

class LogicSigTransaction(transaction, lsig)¶

Bases: object

Represents a logic signed transaction

Parameters:	transaction (Transaction) – lsig (LogicSig) –

transaction¶

Type:	Transaction

lsig¶

Type:	LogicSig

verify()¶

Verify LogicSig against the transaction

Returns:	true if the signature is valid (the sender address matches the logic hash or the signature is valid against the sender address), false otherwise
Return type:	bool

get_txid()¶

Get the transaction’s ID.

Returns:	transaction ID
Return type:	str

dictify()¶

static undictify(d)¶

write_to_file(txns, path, overwrite=True)¶

Write signed or unsigned transactions to a file.

Parameters:	txns (Transaction[], SignedTransaction[], or MultisigTransaction[]) – can be a mix of the three path (str) – file to write to overwrite (bool) – whether or not to overwrite what’s already in the file; if False, transactions will be appended to the file
Returns:	true if the transactions have been written to the file
Return type:	bool

retrieve_from_file(path)¶

Retrieve signed or unsigned transactions from a file.

Parameters:	path (str) – file to read from
Returns:	can be a mix of the three
Return type:	Transaction[], SignedTransaction[], or MultisigTransaction[]

class TxGroup(txns)¶

Bases: object

dictify()¶

static undictify(d)¶

calculate_group_id(txns)¶

Calculate group id for a given list of unsigned transactions

Parameters:	txns (list) – list of unsigned transactions
Returns:	checksum value representing the group id
Return type:	bytes

assign_group_id(txns, address=None)¶

Assign group id to a given list of unsigned transactions

Parameters:	txns (list) – list of unsigned transactions address (str) – optional sender address specifying which transaction return
Returns:	list of unsigned transactions with group property set
Return type:	txns (list)